Invention Grant
- Patent Title: Preparation of dialkyl esters of 2,5-furandicarboxylic acid
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Application No.: US15525426Application Date: 2015-11-10
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Publication No.: US10087162B2Publication Date: 2018-10-02
- Inventor: Ana Sofia Vagueiro De Sousa Dias , Benjamin McKay , Victor Peter Charles Vreeken , Gerardus Johannes Maria Gruter , Johannes Maria Franciscus Sijben
- Applicant: Synvina C.V.
- Applicant Address: NL Amsterdam
- Assignee: Synvina C.V.
- Current Assignee: Synvina C.V.
- Current Assignee Address: NL Amsterdam
- Agency: Hoffmann & Baron, LLP
- Priority: NL2013765 20141110
- International Application: PCT/NL2015/050781 WO 20151110
- International Announcement: WO2016/076711 WO 20160519
- Main IPC: C07D307/02
- IPC: C07D307/02 ; C07D307/68

Abstract:
Dialkyil esters of 2,5-furandicarboxylic acid are prepared in a process including: contacting an acid starting composition having 2,5-furandicarboxylic acid with an excess of alkanol to form an esterification product having the dialkyil ester of 2,5-furan dicarboxylic acid, water and unreacted alkanol; separating at least part of the unreacted alkanol and water from the esterification product to yield a solid crude product composition having the dialkyil ester of 2,5-furandicarboxylic acid; and subjecting at least part of the solid crude product composition to an evaporation step, where the dialkyil ester of 2,5-furandicarboxylic acid is evaporated and subsequently condensed to yield purified dialkyil ester of 2,5-furandicarboxylic acid.
Public/Granted literature
- US20170320845A1 PREPARATION OF DIALKYL ESTERS OF 2,5-FURANDICARBOXYLIC ACID Public/Granted day:2017-11-09
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